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Tartaric acid,H2C4H4O6,has two acidic hydrogens. The acid is often present in wines and precipitates from solution as the wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 24.65 mL of 0.2500 M NaOH solution to titrate both acidic protons in 50.00 mL of the tartaric acid solution. Write a balanced net ionic equation for the neutralization reaction, and calculate the molarity of the tartaric acid solution.
A piece of metal with a mass of 18.2 grams was dropped into a graduated cylinder containing 16.50mL of water. The graduated cylinder after the addition of the metal is 18.40. Determine the density of the metal.
an automobile radiator holds 4 gal of a 10 antifreeze-water mixture. the of antifreeze should be raised to twenty five
Question- Give two ways that the genetic code itself works to ensure errors are not persistent in DNA
compound p binds with x to form the complex px. a series of solutions was prepared with the total p concentration
Write balanced equations for the reactions pf phenylmagnesium bromide and trityl fluoborate with water
At the temperature that both stages are operating at, the vapor pressure of A is 10 kPa and the vapor pressure of B is 100 kPa. The liquid and vapor phases leaving each unit are in equilibrium. Find the composition ..
Mass of dried sample plus evaporating dish
Calcium Nitrate will react w/ ammonium chloride at slightly elevated temperatures, as represented in the equation. Ca(NO3)2 (s) + 2NH4Cl(s) ? 2N2O(g) + CaCl2(s) + 4 H2O (g)
What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?
What is the molecular formula of a compound given the molar mass of the compound is 168.282 g/mol and its empirical formula is C4H4S
Problem- Calculate the rotational partition function at 298 K for the following molecules (all info required for calculation given).
What is the maximum kinetic energy of a photoelectron ejected from cesium by 555 nm light? Note that if the wavelength of the light used to irradiate the cesium surface becomes longer than 660 nm, no photoelectrons are emitted.
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